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A kind of aluminum base tube for photosensitive drum with bright and smooth surface and its manufacturing method

A manufacturing method and photosensitive drum technology, applied in wire drawing dies, metal extrusion dies, etc., can solve the problems of high surface roughness, surface brightness and smoothness of aluminum tubes, etc. The use cycle and life, and the effect of dimensional accuracy stably reaching the standard

Active Publication Date: 2016-08-17
CYMA PRECISION ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Adopting this method can improve the smoothness of the surface of the aluminum tube used for the photosensitive drum substrate to a certain extent, but the surface roughness is still high, and the brightness and smoothness of the surface of the aluminum tube are difficult to adapt to high-precision printers, copiers, fax machines and other electronic equipment. camera device requirements

Method used

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  • A kind of aluminum base tube for photosensitive drum with bright and smooth surface and its manufacturing method
  • A kind of aluminum base tube for photosensitive drum with bright and smooth surface and its manufacturing method
  • A kind of aluminum base tube for photosensitive drum with bright and smooth surface and its manufacturing method

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[0052] Chemical composition of raw materials, Mn: 1.427%, Si: 0.052%, Fe: 0.412%, Cu: 0.180%, Mg: 0.008%.

[0053] Extrusion process and extrusion billet size: The size of the extruded aluminum tube is 38mm in outer diameter, 1.3mm in wall thickness and 33mm in outer diameter, 1.3mm in wall thickness.

[0054] Materials for extrusion dies: Traditional H13 steel and YG8N tungsten alloy steel are used respectively.

[0055] Drawing die improvement: The traditional arc angle and the improved tapered angle are used respectively.

[0056] The dimensions of the conical die are:

[0057] Outer mold: deformation cone angle 60°, sizing working belt length 10mm;

[0058] Inner mold: Deformation cone angle 20°, sizing working belt length 2mm.

[0059] Lubricating oil viscosity for drawing: 800cst and 200cst were used respectively.

[0060] After the extrusion and drawing process, samples were taken for roughness and surface defect detection and analysis. The analysis results are show...

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Abstract

The invention discloses an aluminum-based tube having a bright and smooth surface and used for a photosensitive drum and a manufacturing method of the aluminum-based tube. The aluminum-based tube is prepared from the following alloy elements in percentage by mass: 1.40-1.45% of Mn, 0.02-0.06% of Si, 0.40-0.44% of Fe, 0.13-0.19% of Cu, 0.006-0.010% of Mg, less than or equal to 0.01% of other impurities and the balance of Al. The manufacturing method comprisesextruding and drawing procedures, wherein a used extrusion mold consists of an upper extrusion mold and a lower extrusion mold, a high-strength YG8N wearing resisting alloy ring which is embedded into an inner hole of a lower mold base (6) is used as a lower mold fixed diameter working belt (5), a used inner pull mold consists of an inner mold round steel body and a pull core, an inner mold deformation vertebra angle is set to be 15-25 degrees, an outer mold compression deformation vertebra angle of 40-80 degrees is formed in the feeding part of the outer pull mold, and the working part of the outer pull mold is made of a YG8N tungsten alloy. The aluminum-based tube disclosed by the invention does not need cutting processing and can be directly used in later anode oxidation and coating production.

Description

technical field [0001] The invention relates to an aluminum base tube for a photosensitive drum and a manufacturing method thereof, which is suitable for the aluminum base tube of the photosensitive drum of electrophotographic devices such as printers, copiers, and facsimile machines. Background technique [0002] Aluminum-based tubes have been used as photosensitive drums for electrophotographic devices such as copiers, printers, and fax machines for a long time. Now almost all photosensitive drums are made of aluminum-based tubes. The surface quality required by the photosensitive drum is very strict. In order to ensure the printing quality, the surface of the photosensitive drum is almost mirror-like, and there should be no fine line defects, let alone pinholes, pits and other defects, otherwise the image of the final product will be affected. quality. In order to achieve this condition, for a long time, after the aluminum-based tube billet has been extruded and drawn, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22F1/04B21C37/06B21C25/02B21C9/00B21C3/02
CPCB21C3/02B21C9/00B21C25/02B21C37/06C22C21/00C22F1/04
Inventor 时勇李玉昌胡祥树李勇
Owner CYMA PRECISION ALUMINUM
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